Method and apparatus for allocating application servers in an IMS
US8331354B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 15, 2005 |
| Grant date | Dec 11, 2012 |
| Priority date | — |
| Expiry date | Apr 7, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W80/00
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A method, application server, and Serving Call/Session Control Function (S-CSCF) for allocating a SIP Application Server to a subscriber in an IP Multimedia Subsystem. A Home Subscriber Server (HSS) identifies for the subscriber, a set of provisioned initial filter criteria, which contains at least one generic SIP Application Server identity. The HSS sends the filter criteria to an S-CSCF allocated to the subscriber. The S-CSCF resolves the generic SIP Application Server identity into a plurality of application server addresses, with one of the addresses being allocated to the subscriber for use in provisioning a service to the subscriber. The S-CSCF caches the address allocated to the subscriber for subsequent use.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.